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Watts



Series 223B
Super Capacity
Water Pressure Reducing Valve
2 ½" to 3" N.P.T. threaded female inlet x outlet connections
Series
223B

Series 223B


Series N223B incorporates one of the most experience-proven designs available and for many years has demonstrated its adaptability to many and varied services. It can be furnished with a separate strainer. Threaded connections 2 ½" and 3" (65 and 80mm). Standardly furnished with built-in bypass and sealed cage features.

Reduced Pressure Range: Adjustable from 25 to 75 psi (172 to 517 kPa).


OPTIONS
S - For separate strainer assembled with a nipple
Z8 - Adjustable pressure range 75 to 125 psi (5.17 to 8.62 bars) 3" only.

FEATURES
  • High Capacity
  • Serviceable in line
  • Built-in bypass
  • Water tight sealed cage assembly standardly furnished
  • Bronze Body
223B Drawing

Option Drawings
SPECIFICATIONS
When main supply pressure exceeds 60 psi (413 kPa) an approved water pressure water reducing valve and strainer shall be installed to maintain the reduced outlet pressure 50 psi (345 kPa) or lower. The pressure regulator shall feature a sealed spring cage, bronze body construction and a renewable stainless steel alloy seat. The seat disc shall be Buna-N and shall be replaceable without special tools. Valve shall feature a built-in bypass for thermal expansion. Approved valves shall comply with all applicable requirements of ASSE 1003 and shall be a Watts Regulator Company model N223BS.


MATERIALS
Bronze body construction
Renewable stainless steel alloy seat
Stainless steel strainer screen (N223BS models)
Reinforced Buna-N diaphragm
Buna-N valve disc

PRESSURE-TEMPERATURE
Max. Temperature: 160°F (71°C).
Suitable for initial pressures: up to 300 psi (21 bars).
Reduced pressure range: 25-75 psi (172 - 517 kPa). Set for 50 psi (345 kPa) delivery pressure unless otherwise specified.



Capacity

Capacity

STANDARDS
ASSE Logo

Meets requirements of ASSE Standard 1003. ANSI A112.26.





DIMENSIONS - WEIGHT
N223B
Size(DN) Dimensions Weight Strainer
A C D L N
in. mm in. mm in. mm in. mm in. mm in. mm lbs. kg.
2 ½ 65 -- -- 10 ¾ 273 2 7/8 73 7 7/8 200 -- -- 30 13.6 --
3 80 -- -- 12 ¾ 324 4 1/8 105 10 ½ 267 -- -- 71 32.2 --
N223BS
Size(DN) Dimensions Weight Strainer
A C D L N
in. mm in. mm in. mm in. mm in. mm in. mm lbs. kg.
2 ½ 65 17 432 10 ¾ 273 2 7/8 73 7 7/8 200 5 127 44 20.0 777
3 80 20 ¾ 527 12 ¾ 324 4 1/8 105 10 ½ 267 6 ¾ 172 95 43.0 777
Note: For 3" (80mm) size flanged connections, see Series N223F.
For ½" - 2 ½" (15-65mm) size threaded connections, see Series 223.


Dimensional Drawing


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